CVE-2024-35908

Local denial of service via kTLS reference leak

Published May 19, 2024 · Updated May 11, 2026

Memory leak in the Linux kernel kTLS receive path allows local users to exhaust kernel memory and interrupt service through lock failure. tls_sw_recvmsg increments the psock reference before acquiring tls_rx_reader_lock, then returns on lock failure without dropping that reference. Low-privileged local access is required; repeated failures retain kernel memory and can interrupt service through resource exhaustion.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel kTLS receive path allows local users to exhaust kernel memory and interrupt service through lock failure. tls_sw_recvmsg increments the psock reference before acquiring tls_rx_reader_lock, then returns on lock failure without dropping that reference. Low-privileged local access is required; repeated failures retain kernel memory and can interrupt service through resource exhaustion.

The record

CVE
CVE-2024-35908
Published
May 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <30fabe50a7ace3e9d57cf7f9288f33ea408491c8
  2. Affected versionversion=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <417e91e856099e9b8a42a2520e2255e6afe024be
  3. Affected versionversion=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <b565d294e3d5aa809566a4d819835da11997d8b3
  4. Affected versionversion=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <f1b7f14130d782433bc98c1e1e41ce6b4d4c3096
  5. Affected versionversion=6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <30fabe50a7ace3e9d57cf7f9288f33ea408491c8; version=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <417e91e856099e9b8a42a2520e2255e6afe024be; version=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <b565d294e3d5aa809566a4d819835da11997d8b3; version=4cbc325ed6b4dce4910be06d9d6940a8b919c59b <f1b7f14130d782433bc98c1e1e41ce6b4d4c3096; version=6.0

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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